Hello Cindy
In your HTML file, before you get some data, try to verify if the user is online.
I´m using Jquery GET method, and work's fine on ANDROID and IPAD. If the GET method returns success, you can get your data.
The question is... How much people uses a tablet without internet connection?
If the user is offline, you can store the information to post when the user is online.
My question is, how to store the information on Android and Ipad?
Ipad do not accept "localstorage" method. Only cookies...
Looks like this can be hard to solve with a simple method.
Leo